Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Silicon Labs/Series0/EZR32LG/EZR32LG230F256R69/ADC0/BIASPROG#0x0
Bias Programming Register
Bias Programming Value
Half Bias Current
Comparator Bias Value
https://github.com/cmsis-svd/cmsis-svd-data